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Transcript
Geology 105 – Earth History Name: __________________ Date: ___________________ Natural Selection and Adaptation Homework http://www.pbs.org/wgbh/evolution/library/faq/cat01.html Go to OAKS and download the three readings (For reading #1, DO NOT READ THE FULL ARTICLE, only the first 6 pages). Print this assignment and answer the following questions, and be prepared to answer similar questions on the in-class quiz next week. 1. Give a definition for evolution. __________________________________________________________________ ___________________________________________________________________________________________ 2. Give a definition for natural selection. ___________________________________________________________________________________________ ___________________________________________________________________________________________ 3. Can muscle mass gained from exercise be passed on to the next generation? IE, is this a heritable trait linked to genetics? ____________ 4. Is beak size in medium and small ground finches a heritable trait? _____________ 5. What seed plant did all of the finches living on Daphne Major eat? _____________________ 6. Which plant was only eaten during drought? ____________________ 7. If there is a drought on Daphne Island (a La Niña year), what kind of birds would you expect to survive, and why? ______________________________________________________________________________ 8. What if there is a flood on Daphne Island (an El Niño year)? ______________________________________________________________________________ 9. What is the scientific definition of a “theory”? ___________________________________________________________________________________________ _________________________________________________________________ 10. Has the theory of evolution ever been scientifically unproven? ___________ 11. Is a chimpanzee the direct ancestor of human beings? Why or why not? ___________________________________________________________________________________________ _________________________________________________________________ 12. Give the definition of a species. ____________________________________________________ ______________________________________________________________________________ 13. Is genetic variation a random or non-random process? Explain. __________________________ _____________________________________________________________________________ 14. Is natural selection a random or non-random process? Explain. __________________________ ______________________________________________________________________________ 15. Do individuals evolve? ____ 16. Do species evolve? _____ 17. How long ago did the ancestor of Darwin’s finches (a blueblack grassquit) reach the Galapagos from South America? _____________________ 18. What makes Daphne Major a good place to study natural selection in the wild? _____________ ______________________________________________________________________________ 19. Does natural selection only take place slowly and gradually, over long periods of time? ______________________________________________________________________________ 20. What factor besides beak size is affecting the evolution of Darwin’s finches? ________________ ___________________________________________________________________________________________ _________________________________________________________________